Head to head
Telford Tempest 300 Indirect vs Worcester Bosch Greenstar 8000 Life 35kW combi
The Worcester Bosch Greenstar 8000 Life 35kW combi comes with 10 years more warranty.
Last reviewed 13 September 2026
Key differences
- Warranty: the Worcester Bosch Greenstar 8000 Life 35kW combi comes with 10 years more warranty.
Specifications side by side
| Telford Tempest 300 Indirect | Worcester Bosch Greenstar 8000 Life 35kW combi | |
|---|---|---|
| Dimensions | 1750 mm high x 580 mm diameter | 780 x 440 x 365 mm |
| Warranty | Lifetime guarantee on the body with annual service, 2 year component guarantee | 12 years when installed by a Worcester Bosch accredited installer |
| Capacity | 300 litres | - |
| Weight | 61 kg | - |
| Material | 2304 duplex stainless steel | - |
| Relief valve setting | 7 bar / 90C | - |
| Immersion heater | 3kW, 240V single phase, included | - |
| Hot water output | - | 35 kW |
| Central heating output | - | 35 kW |
| ErP class | - | A |
| Seasonal efficiency | - | 94% |
| Hot water flow rate | - | 12.5 litres per minute |
Sources: Telford Tempest 300 Indirect, Worcester Bosch Greenstar 8000 Life 35kW combi. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the Tempest 300 Indirect if...
A 300 litre indirect cylinder for a larger household or a property with high simultaneous hot water demand, part of Telford's Tempest range. Like the smaller direct model it carries a lifetime body guarantee when serviced annually.
Full Tempest 300 Indirect specifications →Buy or hire the Greenstar 8000 Life 35kW combi if...
- you want one that comes with 10 years more warranty
A gas combi boiler with 35 kW of hot water output, sized for a larger house with two bathrooms. It delivers about 12.5 litres per minute of hot water, which decides how well a shower runs while a tap is on. Warranty: 12 years when installed by a Worcester Bosch accredited installer. Seasonal efficiency is 94%.
Full Greenstar 8000 Life 35kW combi specifications →Common questions
What is the difference between the Telford Tempest 300 Indirect and the Worcester Bosch Greenstar 8000 Life 35kW combi?
The Worcester Bosch Greenstar 8000 Life 35kW combi comes with 10 years more warranty. The Telford Tempest 300 Indirect is a indirect unvented hot water cylinder, 300 litres; the Worcester Bosch Greenstar 8000 Life 35kW combi is a gas combi boiler, 35 kW hot water output.
GetBrent is an independent directory and is not a dealer for, nor affiliated with, either manufacturer. Model and brand names are the trademarks of their owners.